Abstract
Many disordered, crystalline and non-crystalline alloys and metallic conductors are characterized by positive as well as negative temperature coefficients of resistivity α( T) over a wide range of temperature. Experimental results are presented here to show the anomalous behaviour of resistivity with temperature in contrast to the existing theories. The anomalous electron properties can be understood in terms of an attractive interaction between conduction electrons and the localized excitations arising from structural deformity in the atomic arrangements. This scattering mechanism is used to explain the unusual departure from a linear temperature dependence above the Curie temperature ( T c ) in Fe 28Ni 28Te 44, Fe 21Ni 22Te 57, Fe 16Ni 21Te 63 and Fe 8Ni 16Te 76 alloy.
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